sedgwick



(No Model.) 5 SheetS -Sheet 1.

R. SEDGWICK." WIRE TWISTING MACHINE.

No. 520,617. Patented May 29, 1894.

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WASHINGTON. w. c,

(No Model.) 5 Sheets-Sheet 2.

R. SEDGWIOK. WIRE TWISTING MACHINE.

No. 520,617. 7 Patented May 29, 1894.

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WASNINGYON. u. c

(No Model.) 5 SheetsSheet 3.

R. SEDGWIGK. WIRE TWISTING MACHINE.

No. 520,617. Patented May 29, 1894.

K 8 m I (No Model.) 5 SheetQ-Sheeb 4. R. SEDGWICK.

WIRE TWISTIN-G MACHINE. No. 520,617. Patented May 2.9, 1894.

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n4: NATIONAL umoermmme COMPANY.

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UNITED STATES PATENT OFFICE.

RICHARD SEDGWIOK, OF RICHMOND, INDIANA, ASSIGN OR TO THE SEDGWIOK BROS. COMPANY, OF SAME PLACE.

WIRE-TWISTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 520,61? dated May 29, 1894.

Application filed February 15, 1894:. Serial No. 500,223. (No model.) I

.To all whom it may concern/.-

l 3e it known that I, RICHARD SEDeWIcK,a c1t1zen of the United States, residing at Richmond, in the county of. Wayne and State of Indiana, have invented certain new and useful Improvements in Machines for Twisting Inc, of which the following is a specification. My 1nvention relates to machines for twisting mm, and is designed as an improvement upon the machine shown and described in Letters Patent No. 233,033, issued October 5, 1880, to Isham Sedgwick.

The machine described in said patent is adapted to produce a fabric having edge wlres and a diamond-shaped meshworl: or body portion, with or without intermediate tension wires.

The present invention is directed to certain Improvements upon this prior machine whereby It 1s adapted to produce a fabric having edge wires, and a diamond-shaped meshwork or body portion of varying mesh. This var1at1on in the mesh or body portion may comprise or consist of a regular and uniform increase (or decrease) in size of mesh from one side or edge to the other; or it may consist of or'comprise two or more sections each of uniform mesh, but of larger or smaller mesh than the adjacent sections. In order to produce this variable-mesh fabric, it becomes necessary to change the position of both sets of spools or wire-carriers, the twisters, the shiftbar, and the shifters, and to provide for the different sections of the shifting bar, the proper operating means whereby it may perform its proper functions under difierent conditions.

In the drawings,Figure l is a front face View of my machine, partly in section, but showing only such parts of the operating mechanism as are necessary to an understandmg of the presentimprovements Fig. 2, a horizontal sectional view on the line a:m of Fig. l; Fig. 3, a similar view on the line yy of Flg. 1; Fig. 4,a perspective view of the wireshifters. Fig. 5 is a vertical sectional view of a portion of the machine from front to rear; Figs. 6 and 7, views illustrating in detail the construction of the shifting-bar; and Fig. 8, a horizontal sectional view on the line zz of Fig. l.

In order that the present invention may be more clearly understood, I will give a brief description of the construction and operation of so much of the prior machine as is now employed, and then describe in detail the present improvements, as applied to such machine.

There is an upright rectangular frame A, near the base of which is a horizontal master wheel B to which motion is communicated through the gears Q Z, m and n, and band wheel A as shown in Fig. 2. A gear wheel Q carried at the lower end of shaft Q also engages the master wheel; said shaft Q and the shaft Q of wheel Q being provided, respectively, with crank wheels Q and Q, as shown in Fig. 8. Links S connect these wheels with the reciprocating spool-carrier frame, so that the latter shall be moved back and forth from front to rear (across the opening up through which the lower wires pass) periodically by the rotation of the master wheel. Beneath the slot across which the spool-carrier-frame moves, there is a shifting bar T which is moved lengthwise at stated intervals by means of a star wheel U whose arms are engaged, alternately, by pins V V V V V 850., on the arms of the master wheel. At the upper end of the shaft U which carries the star wheel is a pinion U which engages a rack T on the shifting bar T so that when the star wheel is acted upon alternately by the studs on the master wheel, the shifting bar T will be reciprocated alternately (longitudinally) in opposite directions, at certain stated times.

Located on opposite sides of the machine 'are the upright shafts M and M provided at their lower endswith the star wheels M and M which are designed to be actuated by pins or studs 0 D E F upon the master wheel. Shaft M which is quite short, carries at its upper end a pinion M which engages a rack N on the bar N, said bar being provided at the opposite end with a rack N 2 to engage a pinion M on the long shaft M as shown in Fig. 2. Shaft M carries at its upper end a pinion M which engages the rack bars P and P Fig. 3, geared to the twisters P From this construction it follows that the shaft M will be turned first in one direction and then rest or support 71 in the other, and this motion is transmitted through pinion M and racks]? and P to the twlsters. These twisters are embraced between the sliding strippers or Wire-shifters P, which latter are mounted in a frame which is reciprocated back and forth by means of the shaft 0, arms 0 O and links 0 as shown in Fig. 3. Shaft O is provided at one end with a bevel gear 0 which engages a similar gear J on the upright shaft J, Fig. 3; said shaft J having at its lower end the radial arms J and J as shown in Fig. 2. Arm J is connected by bar K with an arm I-I secured to a short upright shaft G, which latter has also a tappet I to be acted upon by the studs 0 D, &c., on the master wheel. A shaft L on the opposite side of the wheel is provided with a tappet L to be also acted upon by the said studs, and an arm K which connects by a link K to the radial arm J of shaft J, as shown in Fig. 2.

It is of course to be understood that the parts which I have noted will be so timed and arranged, relatively to each other, as to give to the reciprocating shifter-bar, the twisters, and the reciprocating spool-carriers and wireshifters, their respective movements in a predetermined order and at stated times in order that these devices may perform their proper functions,

The improvements which I have adopted will now be described in detail. The lower supply-spools h,Fig. 5,-each rest at the rear upon a roller h and at the front upon a fixed When the wire is being unwound from the spool h, the latter is lifted up off the fixed rest 7L and thrown up on the roller h, and as the latter is free to turn or rotate, there will be little or no resistance to the unwinding of the wire. When, however, the tension is taken off the Wire, the spools fall back against the fixed. stop which acts as a brake, thereby preventing the wire from uncoiling from the spools. These spools h are placed at different distances apart,-see Fig. 1,-that is, they are set at gradually increasing or decreasing distances apart, or arranged in sets with those of each set at uniform distances apart but spaced differently from those of adjacent sets. The wires that leave the spools it pass through the shifter-bar T or more properly speaking, the blocks R R and R mounted thereon.

It will be noticed upon reference to Figs. 6 and 7 that the shifter-bar is merely a long bar of metal provided at one end with the rack T and at a point between its ends with longitudinal slots T. On the rear face of the bar at the end opposite the rack, is bolted or otherwise fastened a block R through which two or more of the wires pass. On the same face of the bar, over the slots therein, are the blocks R and R which are likewise perforated and which are supported in their reciprocation by the clips or guides T Figs. 5 and 6, or in any other suitable manner. Each of these blocks R and R is provided with a bolt T which projects freely through the slot T the said bolts being pivotally connected to the upper ends of the levers T", as shown in F g. l,the lower ends of said levers being pivoted to the main frame. A link T is connected with the two upright levers T at different distances from the ends of said levers by means of bolts h and it; while a link T connects bolt 77, with the end of the shlfter bar T as shown in Figs. 1 and 6. From this 'construction'it follows that the alternate reciprocation given to the bar T through the rack and pinion, will be partaken of by the block R fast to the bar, andalso that the blocks R and R will receive a reciprocation from this movement of the bar. Owing, how; ever, to the fact that the blocks R and R receive their motion from their levers T through link or bar T these blocks will have a greater movement than block R and owing to the difference in leverage, the block R will have a greater movement than block R The spool carriers R are shifted b ack and forth upon the plates or supports R over the intervening slot R as 1n the prior machine; but the beveled cleats R are made of different widths in order that the spool-carriers may be so spaced as to occupy the same relative positions upon their supports as do the lower supply spools h. This s clearly shown in Figs. 1 and 8. It is obvious that this construction may be reversed; that 1s to say, the cleats B may be of uniform widths and the spool carriers R of different widths. The construction shown, however, 1S preferred because of its simplicity and cheapness.

The twisters or twisting are placed a distance apart corresponding to the spacing of the wire-carrying spools below, and they are actuated in the samemanner as those described in the prior machlne.

The wire-shifters or stripping-fingers P consist of plates slotted as at P and beveled as at P but instead of making these fingers of uniform width throughout the series, they are made of different widths to correspond to the spacing of the twisters.

From the foregoing it will be seen that the machine can be readily adapted to produce a fabric in which the meshes increase or decrease in size uniformly, from one edge to the other; or a fabric in which the increase or decrease is made in sections with the meshes of each section uniform.

In order 'to maintain the stripping fingers P in their proper relative positions, and to give a firm support for the same, they are connected by the longitudinal bars P, as clearly shown in Figs. 3 and 4.

Having thus described my invention, what- I claim is 1. In a machine for twisting wire, the combination with a twisting mechanism; of a supply-spool h; a roller 71. on the rear face of the spool; and a fixed rest 72 at the front face.

2. In a machine for twisting wire, the combination with a twisting mechanism; of two disks 1?, Fig. 3,

series of wire-supply-spools,the spools of both series and the twisters being placed at different distances apart as described ;a

shifter-bar provided with guide-blocks for the wires; and means for giving the blocks different movements.

3. In a machine for twisting wire, the combination with a twisting mechanism, and the two series of wire supplying spools,-the twisters and spools being arranged at different distances apart as described;'of stripping fingers P of different widths; a shifter bar provided with guide-blocks; and means for giving the blocks different movements.

4. In a wire twisting machine, a reciproeating shifting bar provided with a series of separate wire-blocks, in combination with means whereby the blocks are given different movements.

5. In a wire twisting machine, a reciprocating shifting bar provided with blocks R R and R in combination with means whereby the blocks R. and R shall have a greater movement than block R while the block R has a greater movement than the block R 6. In a Wire twisting machine, a reciprocating shifting bar having the block R secured thereto; in combination with the blocks R and R and means for actuating the latter from the bar but with a different throw.

7. In combination with the slotted bar T the block R fixed thereto; the blocks R and R provided with bolts to pass through the slots; the upright levers connected with the respective bolts; a link T connecting the levers; and a link T connecting one of said levers with the bar.

In witness whereof Ihereunto set my hand in the presence of two witnesses.

RICHARD SEDGWICK.

Witnesses:-

JOHN D. (brown, I. J. BEESON. 

